The panel withdrew its prior opinion and published a superseding opinion affirming in part, and reversing and remanding in part, the district court’s summary judgment in favor of federal defendants in an action by the City of Glendale seeking to set aside the United States Department of Interior’s decision to accept in trust, for the benefit of the Tohono O’odham Nation, a 54-acre parcel of land known as Parcel 2 on which the Nation hoped to build a resort and casino.

The panel held the Gila Bend Indian Reservation Lands Replacement Act, read as a whole, was unambiguous and that § 6(c) of the Act created a cap only on land held in trust for
the Nation, not on total land acquisition by the tribe under the Act. The panel held that § 6(d) of Act was ambiguous as to whether Parcel 2, located on a county island fully surrounded by city land, was within the City of Glendale’s corporate limits. The panel held further that the Secretary of the Interior was mistaken in concluding that the term has a plain meaning, and remanded for the agency to consider the question afresh in light of the ambiguity the panel saw. Finally, the panel held that passage of the Act was within congressional power under the Indian Commerce Clause and was not trumped by the Tenth Amendment